Problem statement 3- calculator

Problem Statement 3/READMEmy.md

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+# Problem statement 3
+
+## CALCULATOR WITH GUI in Python
+
+## Introduction  
+This project , performs basic mathematical operations.
+
+## Tech stack 
+
+The project is made using python.
+
+
+## Demonstration video - here is a view of the project :
+
+
+

Problem Statement 3/main.py

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+from tkinter import*
+
+def btnClick(numbers) :
+    global operator
+    operator = operator + str(numbers)
+    text_Input.set(operator)
+
+def btnClearDisplay():
+    global operator
+    operator=""
+    text_Input.set("")
+def btnEqualsInput():
+    global operator
+    sumup = str(eval(operator))
+    text_Input.set(sumup)
+    operator=""
+
+cal = Tk()
+cal.title("calculator")
+operator=""
+text_Input = StringVar()
+
+txtDisplay = Entry(cal,font=('arial' , 20, 'bold'), textvariable=text_Input, bd=30, insertwidth=4,
+                   bg ="red", justify='right').grid(columnspan=4)
+
+btn7 =Button(cal, padx=16, pady=16, bd=8, fg="black", font=('arial', 20 , 'bold'), text="7",command=lambda: btnClick(7),
+             bg="powder blue").grid(row=1,column=0)
+btn8 =Button(cal, padx=16,pady=16, bd=8, fg="black", font=('arial', 20 , 'bold'), text="8",command=lambda: btnClick(8),
+             bg="powder blue").grid(row=1,column=1)
+btn9 =Button(cal, padx=16,pady=16, bd=8, fg="black", font=('arial', 20 , 'bold'), text="9",command=lambda: btnClick(9),
+             bg="powder blue").grid(row=1,column=2)
+Addition =Button(cal, padx=16,pady=16, bd=8, fg="black", font=('arial', 20 , 'bold'), text="+",command=lambda: btnClick("+"),
+             bg="green").grid(row=1,column=3)
+# =====================================================================================================
+btn4 =Button(cal, padx=16,pady=16, bd=8, fg="black", font=('arial', 20 , 'bold'), text="4",command=lambda: btnClick(4),
+             bg="powder blue").grid(row=2,column=0)
+btn5 =Button(cal, padx=16,pady=16, bd=8, fg="black", font=('arial', 20 , 'bold'), text="5",command=lambda: btnClick(5),
+             bg="powder blue").grid(row=2,column=1)
+btn6 =Button(cal, padx=16,pady=16, bd=8, fg="black", font=('arial', 20 , 'bold'), text="6",command=lambda: btnClick(6),
+             bg="powder blue").grid(row=2,column=2)
+subtraction =Button(cal, padx=16,pady=16, bd=8, fg="black", font=('arial', 20 , 'bold'), text="-",command=lambda: btnClick("-"),
+             bg="green").grid(row=2,column=3)
+# =====================================================================================================
+btn1 =Button(cal, padx=16,pady=16, bd=8, fg="black", font=('arial', 20 , 'bold'), text="1",command=lambda: btnClick(1),
+             bg="powder blue").grid(row=3,column=0)
+btn2 =Button(cal, padx=16,pady=16, bd=8, fg="black", font=('arial', 20 , 'bold'), text="2",command=lambda: btnClick(2),
+             bg="powder blue").grid(row=3,column=1)
+btn3 =Button(cal, padx=16,pady=16, bd=8, fg="black", font=('arial', 20 , 'bold'), text="3",command=lambda: btnClick(3),
+             bg="powder blue").grid(row=3,column=2)
+Multiplication =Button(cal, padx=16,pady=16, bd=8, fg="black", font=('arial', 20 , 'bold'), text="*",command=lambda: btnClick("*"),
+             bg="green").grid(row=3,column=3)
+# =====================================================================================================
+btn0 =Button(cal, padx=16,pady=16, bd=8, fg="black", font=('arial', 20 , 'bold'), text="0",command=lambda: btnClick(0),
+             bg="powder blue").grid(row=4,column=0)
+btnClear =Button(cal, padx=16,pady=16, bd=8, fg="black", font=('arial', 20 , 'bold'), text="C",command= btnClearDisplay,
+             bg="powder blue").grid(row=4,column=1)
+btnEquals =Button(cal, padx=16,pady=16, bd=8, fg="black", font=('arial', 20 , 'bold'), text="=",command=btnEqualsInput,
+             bg="powder blue").grid(row=4,column=2)
+Division =Button(cal, padx=16,pady=16, bd=8, fg="black", font=('arial', 20 , 'bold'), text="/",command=lambda: btnClick("/"),
+             bg="green").grid(row=4,column=3)
+
+
+cal.mainloop()